<!DOCTYPE html>
<html>

  <head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
      body,
      p {
        margin: 0;
        padding: 0;
      }

      .left,
      .center {
        float: left;
        margin-right: 20px;
        background: pink;
      }

      .left {
        background: yellowgreen;
      }

      .right {
        overflow: hidden;
        background: burlywood;
      }

      .left p,
      center p {
        width: 100px;
      }
    </style>
  </head>

  <body>
    <div class="parent">
      <div class="left">
        <p>left</p>
      </div>
      <div class="center">
        <p>center</p>
      </div>
      <div class="right">
        <p>right</p>
        <p>right</p>
      </div>
    </div>
  </body>

</html>